14 documents found, page 1 of 2
Healthy campus: A contribution to the environment, sustainability, and social r...
Durão, Anabela; Raposo, Albertina; Borralho, TeresaThe existing environmental imbalances and the need to promote actions that minimize the impact and promote awareness and behavioral change are now primary needs. As a reflection of this situation, Higher Education Institutions (HEIs) are faced with the need for more sustainable development practices in their environmental, social, and economic aspects both in curricular and non-curricular spaces. This paper aim...
Treatment, at real scale, of a Mediterranean running water with Acid Mining Dra...
Correia, José; Almeida, Adelaide; Durão, Anabela; Pardal, Ana; Borralho, Teresa; Almeida, Adelaide; Durão, AnabelaContext/Purpose: In the Southern of Alentejo region (Portugal), the surrounding area of Roxo stream features sections completely sterile, putting in question the productivity of agricultural activities there lo-cated. This may be due to the affluence of the Água Forte stream, which has Acid Mining Drainage (AMD) characteristics. In view of this situation, it is considered relevant to solve this problem, using e...
Use of Vetiver Zizinioides Floating Beds to improve the quality of surface wate...
Correia, José; Almeida, Adelaide; Durão, Anabela; Pardal, Ana; Borralho, Teresa; Almeida, Adelaide; Durão, AnabelaDue to the negative effects of its main inflows, the water quality of Roxo stream, located in southern Portugal, an area characterized by Mediterranean climate, is degraded, causing consequences in irrigated agricultural activity. The eco technology of floating beds was used to improve the quality of this water. Three Vetiver zizinioides floating beds (3.3 m2/unit; density 40.5 plants/m2) were placed on the Rox...
Study on the application of floating beds of Macrophites (Vetiveria zizanioides...
Borralho, Teresa; Gago, David; Almeida, Adelaide; Almeida, AdelaideThe surrounding area of the Roxo stream sub-basin (basin of the Sado River, Portugal) has completely sterile sections, jeopardizing the productivity of the agricultural activities practiced there. This may be due, in addition to other factors, to the inflow of the Água Forte stream, which has characteristics of Acid Mining Drainage (AMD). The objective of this study was to test the efficiency of heavy metal rem...
Evaluation of salinization and sodifcation in irrigated areas with limited soil...
Alexandre, Carlos; Borralho, Teresa; Durão, AnabelaDue to its high land productivity, irrigated agriculture has an increasing role in food production. In the Alentejo region (southern Portugal) the irrigated area has grown since the completion of the Alqueva dam in 2002. Climatic change patterns foreseen for the Mediterranean region (more heat extremes, less precipitation and river flow, increasing risk of droughts and decrease in crop yields) are prone to soil ...
Wastewater treatment of biodiesel production using persulphate ion as an oxidant
Borralho, TeresaThe production of biodiesel produces a highly polluting effluent, because presents high values of Chemical Oxygen Demand (COD), oils and fats, among other contaminants. Sodium persulphate is a powerful oxidant (Eº = 2.1V). In addition to the direct oxidation that is favored in alkaline media, it can be induced by photolytic processes, catalytic and / or catalytic photos forming sulphate radicals (Eº = 2.6 V) th...
Study of catalytic processes for biodiesel production wastewater treatment
Borralho, Teresa; Coelho, Solange; Estrelo, AndreiaThe study of the possibility of removing organic compounds from wastewater originating from the biodiesel purifi cation stage by two catalytic processes, HSO5 - /transition metal and Fenton method has been presented. The source of the ion HSO5 - is potassium monopersulphate (2KHSO5 ∙KHSO4 ∙K2SO4) (Oxone) that may be decomposed into radicals (OH., SO4-., SO5-.) by means of transition metal as Co(II). Different c...
Evaluation of salinization and sodification in irrigated areas with limited soi...
Alexandre, Carlos; Borralho, Teresa; Durão, Anabela; Durão, Anabela Cândida RamalhoDue to its high land productivity, irrigated agriculture has an increasing role in food production. In the Alentejo region (southern Portugal) the irrigated area has grown since the completion of the Alqueva dam in 2002. Climatic change patterns foreseen for the Mediterranean region (more heat extremes, less precipitation and river flow, increasing risk of droughts and decrease in crop yields) are prone to soil...
Uso de argila bentonita modificada com lantânio na remoção do ião fosfato para ...
Parente, Izabel; Araújo, Fabiana; Borralho, Teresa; Becker, Vanessa; Durão, Anabela; Durão, AnabelaOs fenómenos de eutrofização são um dos maiores problemas observados em sistemas aquáticos, exercendo influência directa na qualidade da água. As principais consequências são originadas pelos produtos metabólicos intermediários como metano, etileno, ácido butírico e outras substâncias de baixa massa molecular, que são tóxicas aos organismos aeróbios e promovem a floração de cianobactérias e algas azuis. Uma das...
Evaluation of salinization and sodification in irrigated areas with limited soi...
Alexandre, Carlos; Borralho, Teresa; Durão, Anabela; Durão, AnabelaDue to its high land productivity, irrigated agriculture has an increasing role in food production. In the Alentejo region (southern Portugal) the irrigated area has grown since the completion of the Alqueva dam in 2002. Climatic change patterns foreseen for the Mediterranean region (more heat extremes, less precipitation and river flow, increasing risk of droughts and decrease in crop yields) are prone to soil...